Normal Voltage mode, REG1 DC/DC ,nrf52833

Question

Hi All! 
 Hope you are doing well! 
 I am using nrf52833, NCS 2.3.0, Want to minimize the current consumption by sleep mode. 
 For this, I disabled the UART and SPI and the current goes down to 80uA when in the connected state with the central. But as per the specification, it should be 10uA. 
 So I tried to enable the " Normal Voltage mode, REG1 DC/DC" 
 using this piece of code 
 // Check if DC/DC converter is supported on the device
 if (NRF_POWER->DCDCEN) {
 // Enable the DC/DC converter
 NRF_POWER->DCDCEN = 1;
	// NRF_POWER->DCDCEN0 = 1;


 
 // Wait for the DC/DC converter to stabilize
 while (!NRF_POWER->DCDCEN || NRF_POWER->MAINREGSTATUS != POWER_MAINREGSTATUS_MAINREGSTATUS_High) {
 k_sleep(K_MSEC(1));

 printk("DC/DC: %d, Main Reg Status: %d
",
 NRF_POWER->DCDCEN, NRF_POWER->MAINREGSTATUS);
 }


 
 }

But it stuck here while (!NRF_POWER->DCDCEN || NRF_POWER->MAINREGSTATUS != POWER_MAINREGSTATUS_MAINREGSTATUS_High) 
 so when I replaced POWER_MAINREGSTATUS_MAINREGSTATUS_High 
 with 
 
 POWER_MAINREGSTATUS_MAINREGSTATUS_Normal 
 
 Then the code continued to work but still, the current remained at 80uA. 
 
 prj. conf file is 
 
 #
# Copyright (c) 2018 Nordic Semiconductor
#
# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
#
#CONFIG_GPIO=y
CONFIG_SPI=y
CONFIG_SPI_NRFX=y
# prj.conf



CONFIG_PM_DEVICE=y

CONFIG_PM=y
# Required to disable default behavior of deep sleep on timeout
CONFIG_PM_DEVICE=y


# Enable the UART driver
#CONFIG_UART_ASYNC_API=y #y
#CONFIG_NRFX_UARTE0=y #y
#CONFIG_SERIAL=y 

CONFIG_GPIO=y

# Make sure printk is printing to the UART console
#CONFIG_CONSOLE=y #y 
#CONFIG_UART_CONSOLE=y #y 

CONFIG_I2C=y
CONFIG_NEWLIB_LIBC=y
CONFIG_NEWLIB_LIBC_FLOAT_PRINTF=y
CONFIG_CBPRINTF_FP_SUPPORT=y

CONFIG_HEAP_MEM_POOL_SIZE=2048

CONFIG_BT=y
CONFIG_BT_PERIPHERAL=y
CONFIG_BT_DEVICE_NAME="Nordic_UART_Service"
CONFIG_BT_DEVICE_APPEARANCE=833
CONFIG_BT_MAX_CONN=1
CONFIG_BT_MAX_PAIRED=1
CONFIG_BT_HCI_VS_EXT=y

# Enable the NUS service
CONFIG_BT_NUS=y

# Enable bonding
CONFIG_BT_SETTINGS=y
CONFIG_FLASH=y
CONFIG_FLASH_PAGE_LAYOUT=y
CONFIG_FLASH_MAP=y
CONFIG_NVS=y
CONFIG_SETTINGS=y

# Enable DK LED and Buttons library
CONFIG_DK_LIBRARY=y

# This example requires more workqueue stack
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048

# Config logger
CONFIG_LOG=n #y
#CONFIG_USE_SEGGER_RTT=y
#CONFIG_LOG_BACKEND_RTT=y #y
#CONFIG_LOG_BACKEND_UART=y

CONFIG_ASSERT=n

# i added these 3 lines from child image of coded phy uart pheripheral
CONFIG_BT_EXT_ADV=y
CONFIG_BT_CTLR_ADV_EXT=y
CONFIG_BT_CTLR_PHY_CODED=y

#CONFIG_BT_USER_PHY_UPDATE=y

#CONFIG_BT_LL_SW_SPLIT=y
#CONFIG_BT_CTLR=y
#CONFIG_BT_HCI=y
#CONFIG_BT=y

#CONFIG_BT_CTLR_ADVANCED_FEATURES=y

#CONFIG_BT_CTLR_CONN_RSSI=y





#CONFIG_BT_CTLR_TX_PWR_DYNAMIC_CONTROL=y
CONFIG_BT_CTLR_TX_PWR_0=y
#CONFIG_MY_CUSTOM_TX_PWR_LEVEL=8
#CONFIG_BT_USER_DATA_LEN_UPDATE=y
#CONFIG_BT_AUTO_DATA_LEN_UPDATE=y
#CONFIG_BT_L2CAP_TX_MTU=247
#CONFIG_BT_BUF_ACL_TX_SIZE=251
#CONFIG_BT_BUF_ACL_RX_SIZE=251
#CONFIG_BT_CTLR_DATA_LENGTH_MAX=251

#CONFIG_BT_CTLR_TX_PWR_MINUS_20=y
#CONFIG_BT_CTLR_TX_PWR_MINUS_4=y

#CONFIG_BT_CTLR_TX_PWR_ANTENNA=20

#CONFIG_MPSL=y
#CONFIG_MPSL_FEM=y
#CONFIG_MPSL_FEM_NRF21540_GPIO_SPI=y
#CONFIG_MPSL_FEM_NRF21540_RX_GAIN_DB=0
#CONFIG_MPSL_FEM_NRF21540_TX_GAIN_DB=20

Can you please guide me to where I am making the mistake of enabling it? 
 
 Thanks & Regards,